Oil and water elevator.



T. H. MGDONALD & S. W. MACK.

OIL AND WATER BLEVATOR.

APPLIOATION FILED NOV. 24, 1911.

1 1 1 8,028. Patented ont. 6, 1914.

3 SHEETS-SHEET 1.

rHE NDRRIS PEYERS CO., PHUTO-LITHO.. WASHINGTUN. D. C.

T. H. MODONALD L S. W. MACK.

OIL AND WATER ELEVATOR.

APPLIUATION FILED Nov. 24, 1911.

1,113,028: Patented oct. 6, 1914L F 6 m22 @9 /4 Egt/ ssHBBTs-SHEEM.

INE MORRIS PETERS co rlnoorLrrun WAM/:Nauw: n c

T. H. MGDONALD L S. W. MACK. OIL AND WATER BLE-VATOR.

APPLwATIoN FILED Nov. 24, 1911.

1 1 1 3,028. Patented 001;. 6, 1914.

3 SHBETS-SHEET 3.

Ma/m@ Wf/amw T HE MORRIS PETERS CO.. PHOTD-LITHO.. WA rilnul0N. D. C.

N i IINITnpsTATns PATENT OFFICE.

THOMAS HARVEY MCDONALD, or. TROPICO CALIFORNIA, AssIoNoRs To MCDONALD AND STEPHEN W. MACK, or GLENDALE, OIL AND `WATER nLEvATORCO., OF Ais1-:Iim

` j1nEnN, WASHINGTON,` Al CORPORATION or WASHINGTON.

To all whom 'it may concern.' 1

Be 1t known that we, THOMAS HARVEY MCDONALD and STEPHENW. MACK, citizens of the United States, saidMcDoNALD,` IeSd-l ing at Tropico, in the county of Los Angeles and State of California,iand said MACK residing at Glendale, in said County and State, have invented new and useful Improvements in Oil and `later Elevators, of which the following is a specification. 1

This invention relates to that class of oil and water elevators illustrated in the patent of the United States No. 970,093, patented Sept. 13, 1910, to said Thomas Harvey Mc- Donald. 1

The object of this invention isto perfect the novel oil and water elevator shown in the said patent in the following `respeets:First,-` the footway is Closed at the foot wheel, and the inlet to the foot waly'iis located in the ascending tubingof the pump at a distance above the foot wheel, thus to minimize the rwear upon the foot wheel by preventing sand from coming into contact therew1th.1

Second,-the foot of thepump is provided with a protector or digger to protect the foot wheel from damage resulting from striking thebottom of the well and also to loosen the sand at the bottom of the well. Third,w improved means are connected with the foot to lower and raise the foot. novel and improved construction of the pump stock is provided, including the descending and ascending tubes or pipes and means for holding the same together and in position. F ifth,`-means areprovided for lowering the foot `wheel and for Operating .i the elevator at different` depths without changing the operative relation of the parts and without splicing the cable. SiXth,-the

mechanism for placingand handling the pump stock in the processof installing and operating the same isimproved. SeVenth,--` means are `provided to improve the operation of the pumping cable.` `l*li` 2jhth,improved means are provided todrive` the pumping cable.

An object of the invention is to provide an endless line oil and water elevator for wells of great depth. A difficulty to be overcome in apparatus of `this kind is the liability of the bucket-carrying line to slip on the `driving `drums because of the great resistance resulting from .friction and from i Specification of Letters Patent.

theinertia ofthe liquid as it is beingstarted from rest and also the friction thereof as itinoves upward through the tubing."` An object ofthe inventionis "to prevent such slipping. t

1Other objects and advantages may appear from the subjoined detail description. 1 1The accompanying drawingsillustrate the Inventlon.

Figure 1 is a broken elevation of apparatus embodying this invention showing the pump installed in operating `position and capable of being flowered about threefourths the depth of the derrick as the sand is pumped out of the well. A broken section of the earth formation is shown. Fig. 2 is a. fragmentary detail `illustrating the method of threadingpthe pumping line. Some of the parts are in section andare viewed from the left of Fig. 1.` Fig. 3 is an enlarged plan section of the pumpstock on linens, ig. .1, showing the slotted temporary tubing in place. Fig.` i is a fragmentary detail illustrating "on a smaller" o 1 Patented Oct.` 6, `1914:. 1 l Application filed November 24, 1911. Serial 110.662.330.

scale than Fig. 3 features of constructi)n` of the pump stock `with temporary tubing, there being shown fragments of the pumping line and core, a split couplingand a detached fragment of a` split tubing to itin said coupling.` Fig. 5 is a fragmentary View on a smaller scale than Fig. 4 of portions of the pump stock and pumping line in position above the surface of the ground ready to be lowered and a fragment of the casing` 1n the ground. Fig. G 1s a plan section on the scale of Fig. 10 from line zu, Figs.\8.` 9,

10. Fig. 7 is a section on the `scale of Fig.` 10, looking up from line ai?, Figs. 8, 9, 10.

Fig. 8 is an elevation partly in section of the lower end ofthe pumpiin place 1n a well-casing, and viewed from the same side as F i0: 1. F i0. 9 is a frafrmental elevation D b D partly in section from line @en -m10, Fig. 8, viewed from the right in Fig. 1. Fig. 10 is an enlarged fragrnental detail of parts shown `in the lower part of Fig. 9; and in section on line .t-m11, Fig. S,loolring in the directionof the arrows. Fi. 11 is a )lan section on the scale of Fig. 10 fromline w11,"

Figs. 1`0`and 12. t Fig. 12is a `fragmentary view of the pump stock at a joint. Fig. 13`

is a fragmentary view of a section of the pump stock ready to be put onto an installed pump tubing for the purpose of lowering the foot. Fig. 14 is a fragmentary" Viewof a portion of the pump stock ready to receive the section shown in Fig. 13. Fig. 15 is an elevation of the rope driving mechanism at the top of the pump. Fig. 16 is an elevation of said mechanism from the right of Fig. 15. The fluid carrier is sectioned on line m16, Fig. 15. Fig. 17 is a fragmentary sectional elevation from line w17, Fig. 15, looking toward the left. Fig. 18 is a fragmental sectional detail of the guide for the tightening pulley. Fig. 19 is a fragmental plan section on line w19, Fig. 9.

Arrows on the section lines indicate the direction of sight.

The foot 1 is made in halves a, I), fastened together by bolts 2 and provided in their inner faces with recesses 3 and together form a chamber for the foot wheel and also a foot way or bucket way for the pumping line and buckets.

The inlet or intake located in a limb 5 of the ascending pump tubing at a considerable height above the level of the foot wheel 6 that is mounted in the recesses 3 on chamfered stub aXles 7 carrying bearing balls 8 that run in a race way c provided in the mid-plane of the wheel, surrounding the abutting chamfered ends of the aXles.

vThe descending tubing is formed of sections 9 connected by couplings 10. Like couplings 10 serve to connect the sections of the ascending pump tubing. The top of the footpiece is provided around the entrance and eXit to and from the foot chamber with sockets 11, 11 to seat the lower ends of the descending and ascending pump tubing. The lower end of each section of tubing is reamed as indicated at 12 in Fig. 10, to avoid liability of engaging the buckets 13 of the endless pumping line 14 which is preferably a steel wire cable. The buckets 13 are located at intervals along the pumping line between front and rear stops 15, 16, which are spaced apart a distance greater than the length of a bucket to allow the buckets to move a short distance along the line to prevent binding at the lower end of the line as the buckets go around the foot wheel.

The distance between the buckets is preferably somewhat less than the distance between the foot wheel and the inlet l of the ascending pump tubing, so that when the pump is inoperation, oil or water entering the inlet 4E and flowing toward the chamber at3 in the foot will be caught by the ascending bucket before the o'il or water reaches said chamber, thus keeping any sand which may be carried by the oil or water from reaching the foot wheel. The ballbearings 8 for the foot wheel axle are inclosed by the foot piece, so that no sand can get to said ball-bearings from the outside. The ballbearings 8 are arranged inside the foot 4 of the pump isv wheel at the mid-plane thereof so as to minimize the friction.

The bucket-way at 3 in the foot is of uniform diameter at its inlet and outlet, with the bore of the descending pump tubing'9. The bore of the ascending pump tubing 5 is of smaller `diameter than the bucket-way and is connected therewith by a taper nipple e, the bore of which tapers from the diameter of the foot-way to that of the ascending pump tubing 5 which is of less diameter` than the descending pump tubing and of the foot-way in order that the buckets may fit the ascending pump tubing to carry up the liquid; and will be free from the walls of the descending pump tubing and of the foot-way so as to avoid friction and minimiZe the resistanceof confined air.

The pump tubingis supported by a line 17 connected at intervals with a sectional core. The lower section 18 of said core is preferably metal and is secured to the supporting line 17 by Babbitt metal 19 molded in a socket 20 in the core section 18 around the spread-out strands 21 of the line. Said core is provided in opposite sides with grooves 22 to lit the pump tubing; and the sections thereof above'the foot section 18 are preferably of wood and form clamp supports at intervals from the section 18 to the top of the well-casing 23.

The joints between the tubing sections and the core sections are staggered, so that when the sections are fastened together by clamps 211 they will form a rigid pump stock from the foot-piece to the top of the well. l

' The digger foot-piece may be made of two channel irons 25 fastened together by bolts 26, 27, 28, 29 and thereby securely Xed to the foot-piece and the core; the bolts 26 fastening the lower ends of the channel irons together; the bolt 28 fastening the channel iron to the lower section 18, and the bolts 29 fastening the channel irons to a wooden section 18 of the core.

The derrick 30 is provided with the sup porting pulley 31 and bull-wheel. 32, on the spool 33 of which bull-wheel is wound a suflicient length of support-ing line 17 to eX- tend to the top of the derrick 30 and over the supporting pulley 31 and' thence down to the bottom of the well, so that when said supporting line is fastened to the bottom core section 18, thereby operating the bullwheel with the usual well rig machinery, not sho-wn, the pump stock, when assembled and attached may be lowered and raised as required.

In order to install the apparatus at a well provided with a derrick, a suilicient length of wire cable supporting line 17 will first be wound on the spool of the bull-wheel and then led over the supporting pulley 31 and down tothe ground where it will be inserted downwardly through the bottom section 18 of the core and its strands spread apart and then drawn back into thesocket 2O which will be filled with Babbitt metal 19.

Thenipple e of the ascending tubing v and the lower section 9 ofthe descending d of one of the grooves 22 tofaccommodate;

the slip coupling V10. j j i l/Vhen the core section 1S abuts against the foot 1,.the intake section of the assembled `tubing willbe slipped along the groove 22 into the coupling and then the wooden core section 1S will be slid into place between the descending and ascending` tubings. Then the channel iron sections 25are applied to thesides of the foot and core and "are fastened inplace by the bolts 26, 27, 2S, 29, the bolt 28 being made to pass through the socket 20 and through the Babbitt metal and cable strands therein.` A clamp 24 will then be applied and a hookbolt f will then be applied to hold the cable 17 `centrally of the core and then the bull-wheel willbe operated to lift the portionof `the pump thus completed into upright `position and it is then brought over the wellfcasing and lowered thereinto until new sections pf the pump stock may be applied. j

It is desirable that the foot wheel shall be of as great diameter as practicable so as to avoid too short a bend of the cable at the bottom of the pump and it is also desirable that the pump stock shall be of as small crossssectional area as possible so as to minimize cost and weight. Therefore. the bottom core section andthe core section next above, are tapered diminishing upwardly to ,the cross-sectional area deemed practical -for the main body of the pump stock core.

j The pump stock sections are made by clamping descending and ascending pump tubings 5 and 9 in place on opposite sides of the grooved wooden core sections 18. The coresection and tubing-sections are of equal length but the core" section oit' each pump stock section is in staggered relation to the tubing sections which are even with each other. The upper end ofthe core section projects above the level ofutheupper end of the tubing' sections and itslower end terminates above the `lowerends of such tubing sections. Slipcouplings 10 are provided to hold the: abutting ends of the tubing sections together. j j 3" i Before applying one pump stock section to the top of another, the clamps 24 must be loosened and the sectionto be applied will be loosened to allow the tubing to spread apart suiciently to slide along the core 1S the` respective sections. clamp plate g is provided and by tightening` until seated in the slip `couplings. 1.07 then the clamps 24 will be tightened and an additional clamp applied to the lower ends of the tubing just inserted so that the tubing `is clamped to the core sections immediately above and below the joint between the same as indicated at Figz12.` i

The core sectionszlS ,are provided with hook bolts f clamping the supportingline to At each bolt a the bolt the supporting' p line is clamped section is independently supported by the supporting line. In this manner the weight is distributed and liability ofjamming or separating.; the ends of the tubing sections is avoided.

The work of adding to and lowering the pump stock will be continued section ;by section until the depth at which the `work of pumping is to be begun has been reached by the foot. Then a suiiicient length of pump` ing line 14 with buckets 13 and front and rear stops 15, 1(5,thereon will be provided and a threading-.line m provided with a flexible coiled spring sheath z. and having `tightly against the clamp plate so that each at its end a socket z' adapted to be grappleol by the Spring arms of the spear head j, is inserted `down the descending tubing 9` and 9 until the socket z' has passed the foot wheel. Thereupon the fishingline Ze will be lowered through the ascendingtubing 5 and will grapple the socket The threadinglinem then being fastened to one end of the pumpw ing' line 14 will be drawn by the fishing line 7c down around the foot wheel 6 and in this manner the pumping line will be threaded throughthe pump. i

The pumping line 14 is bent over a take- `up pulley 34 directly above the ascending limb of thepumptubing' and when threaded as above described, passes thence down around the foot wheel G and up through` and `out at theitop of the top ascending limb section o which terminates `above the spout 35. Thence the line 1s wound a plurality ol? tunes around two grooved` drums 36, 37,

passing first over the drum 86 and thence directly around the drum `37 and `so on around 36 and 37 the required `number of times and then is returned upward from the bottom of the drum`36` and thereupon the` j i ends of the line `are spliced togetheigthus completingthe endless chain by which the vertically `movable by means of a connection 12o pumping` is to be done.` The pulley 34 is i 38 led over pulleys 39, 40 at the top of the derrick and thence down to a sand reel 41` by which this connection can behandledf;`

The pulley 34 will then be drawn upto tighten the pum ping line.

Motion is transmitted to the drums 36, 3T, from a driving shaft `42 which is proi i vided with sprocket wheels 43, 44, to drive sprocket chains 45, 46, that in turn drive theA drum sprocket wheels 47, 48, mounted on the said drums which are carried by the shafts 49, 50, that rare mount- -ed on slanting beams 51 which are supported by the posts 52. By driving the pumping line from two positively driven drums 36, 87, liability that the line will slip is minimized.

n order to avoid creepa'ge of the pumping line on the two ydrums 36, 37, under various loads the driving sprocket wheels 43, 44 lare provided with reversely-arranged ratchet clutches 54 respectively having hubs fixed by suitable means indicated by set-screws 56 to the driving-shaft 42 u'pon which the driving-sprocket-wheels 43, 44 are journaled to allo-w relative rotation between the shaft 42 and said sprocket wheels.

TWhen the load upon the pumping line is heavy there Aappears to be no tendency of said line to creep; but when the load lightens, the pumping line and the sprocket chain do not run in unison, thus causing a tightening of the normally loose lower limb of the upper sprocket chain 45 or the normally loose upper limb of the lower sprocket chain y46.

It is desirable that the chains 45 and 46 operate simultaneously at all times to drive their respective drum wheels 47 and 48; and this 'is approximated by the provision of the reversely-arranged ratchet clutches shown which prevent tho-se limbs of the sprocketfchains which should be loose from becoming tight.

rlhe drums 36, 37 are of like construction and each comprises a hub 57, see Fig. 17, mounted on a shaft 49 or 50, as the case may be, and provided with a web 5S provided with an intermediate collar 59 and with an arm 60 and iiange vforming a seat to receive a portion of the 'tread 62, which is preferably made of wooden segments arranged with the grain extending radially. A n annular clamp ring 63 comprising the web 64, shoulder'65 and flange 66 is fastened by bolts 67 to the web 5S.

The flanges 61 and 66 are provided with retainers 69 which may be annular Alips pro` jecting inwardly from said flanges over the tread seat to hold the segments in place. The collar 59 is more than twice the length ofthe retainer 69;-so thatl when the bolt 67 is loosened, the clamp ring may be slipped away from the web far enough to allow tread segments to be withdrawn and inserted fo-r replacement in case of wear. The flange 6l is provided with sprocket teeth 70v to receive the sprocket chain 45 or 46 as the case may be. y

rlhe mid-planes of the grooves 71 are normal to the axis Vof the drum and each groove is of sufiicient width to accommodate the buckets v13 on 'the line and are provided the bevel of the stub axle. stub axle, being placed in the seat in the other foot-piece, will be brought with said with ycenter recesses 72 to accommodate the line 14. The stops 15 and 16 are of less diameter than the buckets, so that when a stop contacts with one of the treads it lifts the line from thev recess and minimizes the jar of the'bucket passing the drum.

The vblock 73 of the take-up pulley 34 is provided on one side with upwardly and downwardly extended arms guides 7 5 that run along the supporting line 1 to center the descending limb ofthe line 14 relative to the descending tubing 9; and the line 14 is led from the bottom of the drum over said take-up pulley 34, Adown through the descending 'tubing 9 and around the foot-wheel and up through the ascending tubing 5 5 and over the 'upper drum 36; and thence around the drums va sufficient number of times Ito give the required drivling friction.

The foot-wheel is provided with a ball raceway c for the antifrictio-n balls S; 'and the stub axles 7 are supported in seats 77 in the foot 1 and are beveled at their ends to jointly form a raceway 7 S `alined with the racewav 0 to receive the antifriction balls 8.'

Antifriction lateral balls 79 are mounted in seats 8O -in the foot 1, said seats being o-f sufficient diameter at their outer ends to receive the balls 79 and retaining plugs 81 lscrewed thereinto and hollowed yout at their inner ends to accommodate the balls, serve to hold the balls in placek to support the footwheel against lateral displacement.

To assemble the foot the stub axles 7 are inserted in their seats 77 while the opposite halves of the foot are separated. The balls 79 being in place, one-half of the foot will `be brought into horizontal position with the inner side uppermost. One of the stub axles l7 7 lwill then be inserted into the seat therefor and the foot-'wheel will be placed there-V 74 having internally on and the antifriction balls 8 be put into. o

foot wheel and the race-way formed by the Then 'the other other foot-piece into position shown in Fig.

`6, so that vthe foot-wheel is carried by balls in -the-race-way formed between two stub axles. After the parts have been brought together they are lsecured bythe bolts 2.

ln practical operation when there is in the well sand of' such compactness that the weight'of the pump will `not be suiiicient to force the digger to sink into the sand, vthe eating drill, thereby breaking and stirring Yup the sand and making it loose enough so that the pump can `settle down through it.

Then when the pumping line is driven the sand 'will be carried out with the oil 'and water.

As the pump is lowered slotted couplings` p and slotted tubing sections qare applied to the upper core section the top section of the ascending tubing beingraised toallow a slotted "tubingsectionicto be applied beneathit: The slots r and s` of the slotted couplings andsections allowing the same to be brought onto the pumping `line after which they are temporarily clampedf into `place on the core section which closes the slots; thus formingtopextensions of `the tubing` to allow the pumpstockto be lowered until all the slack iis `taken up whereupon the pump stock may be raised7 the slotted tubing sections jbe j' removed, the pump line be cut, additional unslotted tubing sections `placed on the line, a new section of pumping `line spliced into the old to give the new slack thereby and the pump stock then lowered into the well whereupon the operation of elevating the oil,` water and sand may be proceeded withas before.

JV e claim: t'

l. ln an oil and water elevator, the comz bination with a foot, having a footJwayl therein; of afoot-wheelin the foot; de-` scending' tubing leadingLdown to the footway; ascending tubing leading up fromthe foot-way and provided with an` inlet above said footuvay; a driving shaft; driving sprocket wheels on the drivingshaft; reverse ratchet clutches to connect the driving shaft with the Idrivingsprocket wheels respectively; drums on opposite sides of the drivingshaft; sprocket wheels for the drums respectively; a sprocket `chain connecting one of the driving sprocket wheels with one of the sprocket wheels of one of the drums; a sprocket chain connectingthe othei-driw` ing sprocket wheel with the sprocket wheel of the other drum; and an endless pumping line led over the pulley,` wound around the drums; led through the `descending tubing and around the foot-wheel in the foot-way and through the ascending tubing.

2. In an oil and Water elevator, the combination with a foot having a `foot-way therein; of a footwvheelin the foot; de-

scending tubing leading down tothe footway; ascending tubing leading up from the foot-way and provided with" an inlet above said foot-way; a driving shaft; driving sprocket wheels on `the driving shaft; rel verse ratchet clutches to connect the driving shaft with the drivingsprocket wheels respectively; drums on opposite sides of the driving shaft; sprocket wheelsfor the drums respectively; a sprocket chain connecting one of the driving sprocket wheels with the Sprocket` wheel of one of `the drums; a sprocket chain connecting the other driving sprocket wheel with the sprocket p wheel of` the other drum; an` endless pumping line vled over the pulley, wound around the l drums, led through the descending tubing one of the drums.

and around the foot-wheel in the footlway;

and through the" ascending tubing; and means to raise and lower said pulley. 3. In anoil and water elevator,the combination with afoot having a foot-waythere-` in; of a foot-wheel in the foot; descending t tubing leading down to the footway;""alscendingtubing` leading up from tliefoot` way and provided with an inletabovesaid i footway; a driving shaft; driving sprocket wheels on the driving shaft; reverse ratchet clutches to connect the drivingshaft with the driving sprocket "wheels" respectively;

drums on opposite sides of `.the driving shaft; sprocket wheels for the drumsrespeci` tively; asprocket chain connectingonefof` the p driving sprocket Wheels with"` the sprocket wheel of one-` of the drums; a.

sprocket chain connecting `the other driving sprocket wheel with "the sprocket wheel of the other drum; anendless pumping line led over the pulley, wound around the drum, led through the descending tubing and around the foot-wheel in the foot'-\`vay, and through the ascending tubing; means to raise and lower said pulley; and means `to `raise. and lower the foot.

4o In an oil and water elevator7 the combination with a foot having ar foot-way therein; a `foot-wheel in the afoot; descend-1 ing tubing leading down; to` thefoot-way; ascending tubingleading up fromthe footway'and provided with an inlet; two drums; a pulley; an endless pumpingline wound `around the drums led over the pulley and through the descendingtiibing; throughthe foot-way around the foot-wheel and through the ascending tubing; and means, to drive 5. In an oil and water elevator,` the cointherein; a `foot-wheel in the foot; descend- `bination` with afoot havingn foot-way ing tubing leadingdown to` the "foot-way;

ing tubing leading down" to the foot-way;

ascending tubing leading up fromthe footway and provided with aninlet; twodrums; a pulley; an endless pumping line wound` around the drums led.` over pulley e and;` through the descending tubing,` throughthe through the ascending tubing, and compen- Sating means to` drive the drums.

7."In an `endless line oilandwater.eleva-` y f tor, the `combination With a pumping line;`

12s i foot-way and around the foot-wheeland p t of two drums around which said pumping line is wound; a driving shaft between the drums; sprocket wheels journaled on the driving shaft; ratchet clutchesv fixed onr the driving shaft to drive the sprocket wheels inone direction; sprocket wheels fixed to the drums; sprocket chains connecting one of the driving sprocket wheels with thev the core, and communicatingwith the foot-r way; said pumping line being led thro-ugh the pumping tubing.

8. An endless line oil and water elevator, comprising an endless line, buckets thereon, tubing having its intake located above the lower bend of the line a distance that is greater than that between the buckets.. and means to drive the line.

9. An endless line oil and water elevator, comprising an endless line, buckets thereon, tubing having its intake located above the lower bend of the .line so that the inaterial entering the inlet .may be caught by the ascending buckets and therebv prevented from reaching said lower bend, and means to drive the line. f

10. In an endless line oil and water elevator the combination with a pumping line; of two drums around which said pumping line is wound; a driving shaft between the drums; sprocket wheels journaled on the driving shaft; ratchet clutches fixed on the driving shaft to drive the sprocket wheels in one direction; sprocket wheels fixed to the drums; sprocket chains between one of the driving'sprocket wheels and the sprocket wheel of one ot the drums; a sprocket chain between the other driving sprocket wheel and the sprocket wheel ofthe other drum; aA foot-wheel around which the pumping line is led; and a take-up pulley over which vthe pumping line is led.

11. An oil and water elevator comprising a foot provided with a bucket-way; a foot wheel in the foot; descending tubing leading down to the bucket-wav; ascending tubing leading up from the bucket-way, and provided above the bucket-way with an inlet and an outlet; a line provided with buckets to fit the ascending tubing; and means to drive the line.

12. An oil and water elevator comprising a foot provided with a bucket-way; a foot wheel in the root; descending tubing leading downto the bucket-way; ascending tubing leading up from the bucket-way, and provided above the bucket-way with an inlet and an outlet; the bore of the descending tubing being of considerably greaterv 14. In an oil and water elevator the combination with a core provided with grooves on opposite sides, of tubing equal in length to the core seated in the grooves respectively and projecting from one end of the core; said core projecting. from the other end of the tubing and clamps to fasten the tubing to the core. A

15. In an oil and water elevator the combination with a core section provided with grooves onl opposite sides, of another core section provided withy grooves on its opposite sides, and staggered pairs of tubing sections, fastened to opposite sides and of equal length with said core sections.

1G. The combination with two pairs of tubing sections, of core sections, clamps fastening the tubing sect-ions and core sections together', thetubing sections of each pair being symmetrically disposed with relation to each otherand projecting at one end beyondthe end of a core section, and a slip coupling connecting the ends of the tubing sections of one pair with the ends of the tubing sections of another pair.

17. In an endless line oil and water elevator, a pump stock section comprising a core section, two tubing sections of equal length with the core section and in staggered relation thereto, and means to clamp the tubing sections and core sections tcgether.

18.` In anendless line oil and water ele-v vator, a pump stock comprisingpump stock sections respectively l composed of a core -sectionand tubing sections, and means fastening the core `sections and tubing sections together, the coreA sections being in staggered relation Awith the ytubing sections; couplings connecting the tubing sections together, and means to clamp the tubing sectening the core section and tubing sectionsA together, the core4 sections being in stag-.

gered relation to the tubingsections; couplings connecting the tubing sections of the pump stock sections together; means to clamp the tubing sections and core sections together; acable fastened to the lower core section, and means connecting the core sections with the cable.

;` In an endless `line pump, a pump the core sections being in staggered relation; with the` tubing sections; couplings con. necting `the tubing sections of one coresec-` tion `with those of another core section;

means toclamp `the tubing sections and core sections together at the pump stock joints,

a'cable fastened to the lower core section;`

and hook-bolts clampingthe core sections,

respectively, `to the cable.` l

2l. In an. endless line oil and water-vele-` vator, the combination with a foot provided with afoot-wa;T and chamber; a foot-wheel in the chamber; descending andascending tubing connected with `the foot land communicating with the foot-way; a metal core section provided with a ubore between` the ascending and descending tubing and above,

the foot; a cable extendingin `the bore and having its strands "spreadf apart therein; metal molded in the core section to hold `the strands; core sections above the core; clamps fastening the tubing to the core sections, and

. means to `clamp the cableeto the core seci l to the cable.

tions respectively.

22. In an oil and water` elevator, the ccmbination with a foot-wheel carrying foot and a lower core section, of means fastening the lower core section tofthe foot; upper core sections above said lower core section; a cable fastened to the lower core section, and means securing the upper core sections 23. An oil and water elevator comprising descending and ascendingtubing; foot provided with a foot-wayl at the bottoni of the tubing; a foot-wheel in the foot; a pumping line led around the foot-wheel in the foot-way and provided with buckets; and means to drive the line; there being an inlet to said foot-way, the inlet being located in the ascending tubing of the pump at a distance above the foot-wheel.

. 242. An oil and water elevator comprising descending and ascendingtubing; a foot fastened to the tubing and provided with a foot-'way communicating" with the descending and ascending tubing; a foot-` wheel in the foot-way; a line provided with buckets and running in the foot-way; there beingan inlet to the foot-way above the e foot-wheel; a digger oiitliejlower end of the footway,and` means to raise and lower the foot-way, digger and tubing.

25. An oil and water elevator pump stock and means to` raise comprising core sections; `descending, tubv ing; ascending tubing; slotted tubing sections having` their slotsclosed by` thecore i sections; means to fasten thecore sections 1 and `foot-wav; tubing sections provided in i their sides with slots to allow passage therethrough of the line; and means to` clamp the slotted tubing sections against the core seci tionsfthe slots being closed bythe core sections. i

27. In an oil and water elevator, a pump stock comprisinga foot provided with a chamber? and a foot-way; descending and ascending tubing communicating with "the foot-way; a core above the footfand between v the tubing; means fastening the core and tubing together; an" endless line in thetubing and foot-way; and `means to drive the linerthere beingairinlet intothe tubing."`

28. In an endless line oil and water eleva-i tor. the combination with a foot provided` with a chamber and a foot-way; of descending tubing connected with the foot and of the same diameter as the foot-way; ascending tubing of less diameter than the footway and provided with an inlet above `the foot-wav; a wheel in the chamber; and an endless line led around the wheel and provided with buckets tubing. i

29. In an oil and water elevator, the combination with a foot having a foot-way therein; of descending and ascending pump tubing connected with the foot-way; a core" connected with the tubing to the core; a line fastened to the core, and means for raising and lowering the line.

30. In an oil and water elevator, the combination with a pump stock comprising descending and ascending tubing, a foot at the bottom of the tubing; a foot wheel in the` foot; an endless pumping `line led around the foot-wheel; means to drive the line; of a supporting` line.; to support the pump stock and foot; means to operate the supportingline to raise and lower the foot; a take-up pulleyover whichthe line is led, and `lower the take-up pulley.

31. In an endless line oil and water elevai tor, the combination i with a pump stock comprising descending and ascending` tubing and a foot havinga foot-way communifitting the ascending` the foot; clamps clamping catingwith said tubing and provided `with a foot-wheel; of a supporting line to sup-` port `the pump stock and foot; a pumping line led through the tubing and foot and around the foot-wheel; driving mechanism for the pumping line; a take-up pulley for the pumping line; and means to operate the take-up pulley. p

33. In an endless line oil and Water elevator, the combination with a pump stock comprising descending and ascending tubing and a foot havingva foot-way communi cating with said tubing and provided with a ootfwheel; of a supporting line to support the pump stock andfoot; a pumping line led through the tubing and foot; driving mechanism for the pumping line; a

take-up pulley for vthe pumping line; 'a

guide comprising two arms connected with the Jfake-up pulley and running on the supporting line, and means to support the takeup pulley.

34.' An endless line oil and water elevator comprising a fluid excluding foot, `tubing extending up from said foot and provided with an intake, an endless lline running through said foot and tubing, and buckets on' said line, the distance between adjacent buckets being less than thedis'tance between the lower end of the tubing and the inlet.

In testimony whereof, we have hereunto set our hands at Los Angeles, California, this 17th yday of November, 1911.

THOMAS HARVEY MGEONALD. STEPHEN W. MACK.

In presence 01?- JAMES It. TOWNSEND, L. BELLE RICE.

Copies of this patent may be obtained forve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

